What Is VoIP? How Voice over Internet Protocol Works

VoIP, or Voice over Internet Protocol, is a technology that carries voice calls over IP networks instead of relying entirely on traditional circuit-switched telephone lines. During a VoIP call, speech is converted into digital data, divided into packets and transmitted across an IP network. At the receiving end, those packets are reconstructed and played back […]

How to Fix Mic Echo: Causes and Solutions for Calls and Meetings

Microphone echo during a call usually happens when speaker audio is picked up by a microphone and transmitted back into the meeting. However, similar symptoms can also be caused by microphone monitoring, two active devices, room reverberation or incorrect audio settings. The fastest fixes are to use headphones, reduce speaker volume, verify the active microphone […]

White Label Messaging App: 8 Platforms for Branded Chat and Video in 2026

A white label messaging app is a ready-made communication platform that can be released under another company’s brand. Instead of building messaging, group chat, voice calls, video meetings, notifications and user management from scratch, an organization starts with an existing communication stack and adapts it to its own product identity. Depending on the provider, white […]

Electronic Communication in Business: Types, Channels and How to Choose

Electronic communication is any exchange of information through digital or electronic systems. In business, that can include email, instant messaging, video meetings, voice calls, SMS, collaboration platforms, intranets and other digital channels. The challenge is not finding ways to communicate. Most companies already have many. The harder problem is deciding which channel should be used […]

Out-of-Band Communication: Platforms, Architecture and Best Practices

Out-of-band communication (OOB communication) gives an organization a separate communication path when normal email, messaging, calling or collaboration systems are unavailable or potentially compromised. Typical scenarios include: ransomware; identity compromise; Microsoft 365 or Google Workspace outages; corporate network failures; telecom disruptions; major infrastructure incidents; business continuity activation. The important word is separate. A second messaging […]

Is Slack Encrypted? How Slack Encryption Actually Works

Yes, Slack is encrypted. Slack encrypts customer data: in transit, while data moves between users and Slack services; at rest, while data is stored on Slack infrastructure. However, this does not mean that standard Slack messages use end-to-end encryption. That distinction matters. With end-to-end encryption, message content is encrypted on the sender’s device and can […]

Telepresence Video Conferencing: How It Works and When It Makes Sense

Telepresence video conferencing is a form of video communication designed to make remote participants feel more naturally present in the same meeting space. Unlike standard video conferencing, which mainly focuses on connecting people through reliable audio and video, telepresence coordinates the entire meeting environment: cameras, displays, microphones, speakers, participant positioning, room geometry, lighting and network […]

WebRTC Video Conference: How Browser-Based Meetings Work

A WebRTC video conference allows participants to exchange real-time audio and video through a browser or application without relying on traditional browser plugins. The user experience can be simple: open a meeting link, allow camera and microphone access, and join. Behind that interface, several different systems have to work together: media capture; signaling; session negotiation; […]

Multipoint Video Conferencing: How MCU Architecture Works

A point-to-point video call connects two endpoints. Once three or more locations join the same meeting, the system has to decide how audio and video streams are distributed, where layouts are created, and which component handles media processing. That is the problem multipoint video conferencing solves. An MCU, or Multipoint Control Unit, is one established […]

SIP Video Conferencing: How It Works, Equipment and Platforms

SIP video conferencing uses the Session Initiation Protocol to establish and manage video communication sessions between standards-based endpoints, conference rooms, telephony systems and conferencing platforms. SIP itself normally does not carry the video media. It handles call setup and session control, while audio and video are transported separately through media protocols such as RTP or […]

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